Astronauts Dan
Barry and Pat Forrester successfully strung two 45-foot heater cables
and installed handrails down both sides of the Destiny laboratory of
the International Space Station today during a 5 hour, 29 minute spacewalk,
setting the stage for the delivery of a large truss structure to the
complex next year.

The cables would
provide backup power to the S0 truss, if needed, in the unlikely event
it could not be installed in a timely fashion on the station next spring
as the centerpiece for a 300-foot girder, which will serve as the backbone
for the orbital outposts external experiments, solar arrays and the
future mobile base for the Canadian-built station robotic arm.

Barry and Forrester
began their spacewalk at 8:42 a.m. Central time, and ended their final
excursion outside Discovery at 2:11 p.m., completing the 26th spacewalk
devoted to the assembly of the International Space Station, 24 of which
were staged from the Shuttle, and the 68th spacewalk in Shuttle program
history.

Other spacewalk
statistics following today's activity include:

-- Total spacewalk
time in Shuttle program history: 431 hours, 39 minutes. -- Total spacewalk
time to assemble the ISS: 167 hours, 24 minutes. -- Total Shuttle spacewalk
time for ISS assembly: 163 hours, 3 minutes. -- Total spacewalk time
for the two EVAs on STS-105: 11 hours, 45 minutes.

While the spacewalk
was being conducted, Expedition Three Commander Frank Culbertson and
his crewmates, Vladimir Dezhurov and Mikhail Tyurin, continued loading
the Leonardo cargo module on the station, which will be detached from
the ISS Unity module Sunday and returned to Discovery's payload bay
for the trip back home.

The astronauts
and cosmonauts will begin an eight-hour sleep period at about 8 tonight
Central time and will be awakened at 4:10 a.m. Sunday to begin the 10th
day of this mission.

The two spacecraft
are in excellent health orbiting the Earth every 90 minutes at an altitude
of 250 statute miles. The next mission status report will be issued
at about 6 a.m. Sunday, or earlier if mission events warrant.

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